GrubHub - The online food delivery site reported first-quarter earnings per share of 6 cents on $59 million in revenue, versus estimates of EPS of 3 cents on $53 million in sales. Its shares rose in after-hours trade.

Monster Beverage - The drink provider reported first-quarter earnings per share of 55 cents on $536 million in revenue, versus estimates of an EPS of 49 cents on $542 million in sales. Its shares gained in after-hours trading.

Rocket Fuel - The digital advertising company reported a first-quarter earnings per share loss of 33 cents on $74.4 million in revenue, compared to analysts' expectations of an EPS loss of 30 cents on $76 million in sales. Its shares dropped in after-hours trade.

Symantec - The security software maker tallied fourth-quarter earnings per share of 47 cents, excluding items, on $1.63 billion in revenue, versus estimates of an EPS of 42 cents on $1.65 billion in sales. It offered first-quarter guidance that was light on the bottom line and a bit better on the top. Its shares rose in after-hours trade.